Seal ring

Abstract

A seal ring system is provided. The seal ring system comprises a segment defining a slot, a pedal along the slot, and an opening offset from the slot. A retention fastener may be disposed in the opening. A seal ring system is also provided comprising a first segment defining a first opening, a second segment defining a second opening, and a retention fastener extending through the first and second openings. The retention fastener configured to allow relative radial movement of the first segment and the second segment. A seal is further provided comprising a seal ring having a central axis, a petal extending radially inward with respect to the central axis of the seal ring, and a sealing disk axially proximate the seal ring. The sealing disk may have a seal shoe configured as a primary seal. The petal may extend toward the seal shoe.

What is claimed is: 
     
         1 . A seal ring system, comprising:
 a segment defining a slot, a pedal along the slot, and an opening offset from the slot; and   a retention fastener disposed in the opening.   
     
     
         2 . The seal ring system of  claim 1 , further comprising a plurality of additional segments, the segment and the plurality of additional segments forming a first row of segments having an annular shape. 
     
     
         3 . The seal ring system of  claim 2 , wherein the retention fastener is a retention pin, and the segment is configured to move in a radial direction relative to the retention pin. 
     
     
         4 . The seal ring system of  claim 2 , further comprising a second row of segments proximate the first row of segments and staggered with the first row of segments. 
     
     
         5 . The seal ring system of  claim 4 , wherein the slot includes parallel edges and a round feature at a distal end of the slot. 
     
     
         6 . The seal ring system of  claim 1 , wherein the segment comprises a petal defined by the slot and at least one additional slot defined in the segment. 
     
     
         7 . The seal ring system of  claim 1 , wherein the segment comprises a thickness less than 0.006 inches. 
     
     
         8 . A seal ring system, comprising:
 a first segment defining a first opening;   a second segment defining a second opening; and   a retention fastener extending through the first opening and the second opening and configured to allow relative radial movement of the first segment and the second segment.   
     
     
         9 . The seal ring system of  claim 8 , wherein the first segment comprises a thickness less than 0.006 inches. 
     
     
         10 . The seal ring system of  claim 8 , wherein the retention fastener comprises a retention pin. 
     
     
         11 . The seal ring system of  claim 10 , further comprising a spacer adjacent the first segment, wherein the retention pin extends from the spacer into the first opening and the second opening. 
     
     
         12 . The seal ring system of  claim 8 , wherein the first segment further comprises:
 a first slot defined by the first segment and including first parallel edges and a first round feature at a distal end of the first slot.   
     
     
         13 . The seal ring system of  claim 12 , wherein the first segment further comprises:
 a second slot defined by the first segment including second parallel edges and a second round feature at a distal end of the second slot; and   a petal defined by the first slot and the second slot.   
     
     
         14 . The seal ring system of  claim 8 , further comprising a plurality of additional first segments, the first segment and the plurality of additional first segments forming a first row of segments having a first annular shape. 
     
     
         15 . The seal ring system of  claim 14 , further comprising a plurality of additional second segments, the second segment and the plurality of additional second segments forming a second row of segments having a second annular shape. 
     
     
         16 . The seal ring system of  claim 14 , wherein the second segment comprises a full ring. 
     
     
         17 . A seal, comprising:
 a seal ring having a central axis;   a petal extending radially inward with respect to the central axis of the seal ring; and   a sealing disk axially proximate the seal ring and having a seal shoe configured as a primary seal, wherein the petal extends toward the seal shoe.   
     
     
         18 . The seal of  claim 17 , wherein the seal ring comprises a plurality of separate segments. 
     
     
         19 . The seal of  claim 17 , wherein the seal ring further comprises a lip configured to engage the seal shoe. 
     
     
         20 . The seal of  claim 17 , wherein the seal shoe further comprises a pin configured to engage the seal ring.